The relay is powered up and activated thanks to a small electrical current. When it is activated, it lets a current that is much bigger than the original one flow through other two outlets. It is used to control the headlights, the rear fog light, the electric fan, etc.
Replaced starter...worked forva week...came back...no start...tow to mechanic...it started...happened one morevtime and fingers crossed it does not happen again
Turns out the mechanic ended up tracking down a couple of relays that had blown 911 Automotive Hamilton Ontario... I have a feeling I got ripped off for the starter it may have gone but probably didn't need to be replaced right now